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A118295 Start with 20 and repeatedly reverse the digits and add 1 to get the next term. 0
20, 3, 4, 5, 6, 7, 8, 9, 10, 2, 3, 4, 5, 6, 7, 8, 9, 10, 2, 3, 4, 5, 6, 7, 8, 9, 10, 2, 3, 4, 5, 6, 7, 8, 9, 10, 2, 3, 4, 5, 6, 7, 8, 9, 10, 2, 3, 4, 5, 6, 7, 8, 9, 10, 2, 3, 4, 5, 6, 7, 8, 9, 10, 2, 3, 4, 5, 6, 7, 8, 9, 10, 2, 3, 4, 5, 6, 7, 8, 9, 10, 2, 3, 4, 5, 6, 7, 8, 9, 10, 2, 3, 4, 5, 6, 7, 8, 9, 10 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
After 1 step enters a cycle of length 9.
LINKS
N. J. A. Sloane and others, Sequences of RADD type, OEIS wiki.
EXAMPLE
After a(9) = 10 we get a(10) = (reversed digits of a(9)) + 1 = 01 + 1 = 2. - David A. Corneth, Jan 08 2024
MATHEMATICA
PadRight[{20}, 100, Range[2, 10]] (* Paolo Xausa, Jan 08 2024 *)
PROG
(PARI) a(n) = if(n == 1, return(20)); return(((n-1)%9) + 2) \\ David A. Corneth, Jan 08 2024
CROSSREFS
Cf. A118551.
Essentially the same as A117230.
Sequence in context: A040391 A255860 A195600 * A070645 A248136 A040392
KEYWORD
nonn,easy,base
AUTHOR
Luc Stevens (lms022(AT)yahoo.com), May 14 2006
STATUS
approved

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Last modified May 24 14:39 EDT 2024. Contains 372778 sequences. (Running on oeis4.)